#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

int main() {
    char k;
    while (~scanf("%c", &k))
    {
        if (k == 'a' || k == 'A' || k == 'E' || k == 'e' || k == 'I' || k == 'i' || k == 'o' || k == 'O' || k == 'U' || k == 'u')
        {
            printf("Vowel\n");
        }
        else {
            printf("Consonant\n");
        }
        getchar();
    }
    return 0;
}